MIL-DTL-22200/1H(SH)
c. To determine the total arc time of the complete weld pass, measure the arc time for each weld bead in the
pass and add the individual bead arc times together. An electronic arc timer or equivalent automated system that
measures the total arc time for the pass may also be used.
d. Measure the arc voltage and welding amperage for each weld bead in the pass. Average the voltage and
amperage to derive the average voltage and amperage values for the weld pass. If no adjustments are made to the
output of the welding equipment, it is not necessary to measure the amps and volts on each bead.
e. Insert the average travel speed, arc voltage, and amperage for each complete pass into the heat input
equation of 4.6.2.2 to calculate the heat input for the weld pass.
4.6.3 Other tests. Table VIII summarizes tests, in addition to those as specified in table VI and table VII,
required for qualification testing of the electrodes for the QPL and for conformance inspection, as applicable.
4.7 Core wire alloy identity tests. The core wire alloy identity test requirements shall be as specified in MIL-E-
22200.
4.8 Temperature and humidity environmental exposure procedures. The electrode sample shall be exposed to
elevated temperature and humidity conditions in accordance with exposure procedures specified in AWS
A5.5/A5.5M. At the end of the exposure time, the electrodes shall be removed from the chamber and a sample of
the coating taken for moisture determination as specified in the section entitled "Sample Preparation, Handling, and
Storage" section of AWS A4.4M for covered electrodes.
4.8.1 Frequency of testing. The test of 4.8 shall be conducted for each lot, except that after testing ten
consecutive lots of a specific product and size electrode with satisfactory results, the frequency of testing for that
specific product and size electrode may be reduced to one lot in every ten lots. However, one unsatisfactory test
result shall require reversion to the above cycle.
4.9 Chemical analysis. Welding of chemical analysis test pads shall be as specified in MIL-E-22200. The
chemical compositions as specified in table IV are minimum and maximum limits. However, this specification does
not imply and it should not be inferred that each of the possible chemistry compositions defined by these limits will
meet the full requirements of this specification, for example, mechanical properties. Once a formulation is
developed and qualified, and the aim values (composition validated by qualification testing) for each major alloying
element have been established, changes to the formulation or aim values shall be verified not to alter the design
criteria and be supported by test data. This information shall be reported to NAVSEA, who will determine if
requalification is required in cases where the changes are found to adversely affect design criteria or performance.
4.10 Mechanical tests. Mechanical tests of welded test assemblies shall be as specified herein.
4.10.1 Impact test requirements.
4.10.1.1 Charpy V-notch testing. The Charpy V-notch specimens shall be machined to dimensions as shown in
figure 1 and tested as specified in AWS B4.0. The notch shall be perpendicular to the plate surface. Impact
properties for the five specimens shall be obtained at each test temperature as specified in table III ±3 °F.
4.10.2 Tensile testing. Two tensile test specimens shall be prepared and tested per AWS B4.0.
5. PACKAGING
5.1 Packaging. Packaging shall be as specified in MIL-E-22200.
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